电力工程技术2025，Vol.44Issue(3)：150-159,10.DOI:10.12158/j.2096-3203.2025.03.014
基于电池储能的陆上风电全直流系统低电压穿越策略
Low voltage crossing strategy for all-DC power generation system of onshore wind power based on battery energy storage
摘要
Abstract
The all-DC system of onshore wind power can effectively solve the problems of harmonic resonance and reactive power transmission,which is the development direction of wind power generation system.The all-DC system of onshore wind power has a low-voltage ride-through(LVRT)capability and can guarantee voltage stability.Based on the topology and operation control strategy of the onshore wind power all-DC power generation system,the surplus power gathered in the DC link of the system is analyzed during the grid-side voltage dips and the applicability of conventional LVRT strategies is analyzed in the wind power all-DC system.Considering the grid requirements for wind power system energy storage configuration and the self-starting characteristics of wind turbines,a LVRT control strategy based on battery energy storage is proposed.This strategy can store the surplus power of the DC bus when low voltage faults occur.The all-DC power generation system of onshore wind power is built by PSCAD/EMTDC,and the proposed strategy is verified by simulation.The results show that the proposed control strategy can improve the low-voltage ride-through capability of the all-DC system of onshore wind power,and promote the rapid recovery of DC bus voltage.Battery storage absorbs surplus energy during faults and provides energy during self-start of the wind turbine.This strategy can improve the utilization of energy and storage.关键词
陆上风电全直流发电系统/故障特性/低电压穿越(LVRT)/自启动/电池储能/直流母线电压恢复Key words
onshore wind power all-DC power generation system/fault characteristic/low voltage ride through(LVRT)/control strategy/self-starting/battery energy storage/DC bus voltage recovery分类
信息技术与安全科学引用本文复制引用
曹勋哲,李凤婷,尹纯亚,刘江山..基于电池储能的陆上风电全直流系统低电压穿越策略[J].电力工程技术,2025,44(3):150-159,10.基金项目
国家重点研发计划资助项目"陆上风电场群全直流发电系统及协同控制技术"(2021YFB1507001) （2021YFB1507001）
